Part2

What are two features related to Linux?

• support by a community of programmers, , an application for word processing

• open source, an application for word processing

• an example of interpreted language, a code base managed by one organization

• open source, support by a community of programmers

Which language is an example of a compiled programming language?

• PHP

• Python

• C

• Javascript

A system administrator issues the command ps on a server that is running the Linux operating system. What is the purpose of this command?

• to display the contents of the current directory

• to process a new task

• to change file permissions

• to list the processes currently running in the system

Which Linux shell command can be used to search a specific string of characters within a file?

• man

• cat

• grep

• pwd

What is needed for a computer program to communicate with another computer program made from a different vendor?

• firmware

• API

• device driver

• operating system

What is the benefit of deploying a group of headless Pi IoT devices?

• The Pi IoT devices can connect to each other using Zigbee.

• A single monitor can be connected to the group of Pi IoT devices.

• Each Pi IoT device is managed remotely on a network.

• The group of Pi IoT devices must be controlled by a single Pi device in the cloud.

Which Python command is an example of conditional logic?

• if

• def

• delay

• from

Why is it common to connect an Arduino board with a single board computer like the Raspberry Pi?

• The Raspberry Pi cannot process incoming digital signals.

• The Arduino is a full computer and the Raspberry Pi is not.

• The Arduino has analog pins.

• The Raspberry Pi does not require software to interact with an Arduino.

What is an advantage of an executable program coded with an interpreted language compared with a compiled language?

• It stores as binary format.

• It runs faster.

• It is easier to maintain and troubleshoot.

• It does not rely on another program in order to execute.

What is a method to secure the control plane of an IoT device?

• verification of data integrity

• the encryption of user data

• restricting access to servers

• enforcement of authorized access to code